uBlock/platform/firefox/bootstrap.js

/*******************************************************************************

    µBlock - a browser extension to block requests.
    Copyright (C) 2014 The µBlock authors

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see {http://www.gnu.org/licenses/}.

    Home: https://github.com/gorhill/uBlock
*/

/* global APP_SHUTDOWN, APP_STARTUP */
/* exported startup, shutdown, install, uninstall */

'use strict';

/******************************************************************************/

let bgProcess = function(e) {
    if ( e ) {
        this.removeEventListener('DOMContentLoaded', bgProcess);
    }

    let hDoc = Components.classes['@mozilla.org/appshell/appShellService;1']
        .getService(Components.interfaces.nsIAppShellService)
        .hiddenDOMWindow.document;

    bgProcess = hDoc.documentElement.appendChild(
        hDoc.createElementNS('http://www.w3.org/1999/xhtml', 'iframe')
    );
    bgProcess.setAttribute('src', 'chrome://ublock/content/background.html');
};

/******************************************************************************/

function startup(data, reason) {
    if ( reason !== APP_STARTUP ) {
        bgProcess();
        return;
    }

    let ww = Components.classes['@mozilla.org/embedcomp/window-watcher;1']
                .getService(Components.interfaces.nsIWindowWatcher);

    ww.registerNotification({
        observe: function(win) {
            ww.unregisterNotification(this);
            win.addEventListener('DOMContentLoaded', bgProcess);
        }
    });
}

/******************************************************************************/

function shutdown(data, reason) {
    if ( reason === APP_SHUTDOWN ) {
        return;
    }

    bgProcess.parentNode.removeChild(bgProcess);
}

/******************************************************************************/

function install() {
    // https://bugzil.la/719376
    Components.classes['@mozilla.org/intl/stringbundle;1']
        .getService(Components.interfaces.nsIStringBundleService).flushBundles();
}

/******************************************************************************/

function uninstall() {}

/******************************************************************************/